Orbit Fit and Astrometric record for 14TF86

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 14TF86    
# Created Thu Dec 14 02:38:05 2017
# Orbit generated from Bernstein formalism
# Fitting   10 observations of   10
# Arc:   1.04y
# First observation: 2014/10/01
#  Last observation: 2015/10/16
Preliminary a, adot, b, bdot, g, gdot:
  -0.000012   0.021334   0.000010  -0.004052   0.023301   0.000000
# Chi-squared of fit:     2.75 DOF:   14 RMS:  0.09
# Min/Max residuals:    -0.15    0.18
# Exact a, adot, b, bdot, g, gdot:
  1.386754E-05  2.147009E-02 -2.719412E-06 -4.076676E-03  2.354768E-02  1.669977E-03
# Covariance matrix:
  6.8562E-13 -9.3969E-12 -1.1009E-13  8.0778E-13 -1.6915E-13 -4.5127E-10
 -9.3969E-12  4.1199E-10 -9.3434E-12 -3.4191E-11  1.0560E-10  2.0207E-08
 -1.1009E-13 -9.3434E-12  7.8794E-13  4.9028E-13 -4.9322E-12 -4.5835E-10
  8.0778E-13 -3.4191E-11  4.9028E-13  3.7961E-12 -8.4210E-12 -1.6809E-09
 -1.6915E-13  1.0560E-10 -4.9322E-12 -8.4210E-12  4.4504E-11  5.1846E-09
 -4.5127E-10  2.0207E-08 -4.5835E-10 -1.6809E-09  5.1846E-09  9.9334E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
  -30.983206  -45.541792   -0.802236   -0.310283   -0.517030  2456931.580639
# Heliocentric elements and errors
Epoch:              2456930.5000  =  2014/09/30
Mean Anomaly:          118.02204 +/-    14.049
Argument of Peri:      124.76928 +/-    13.467
Long of Asc Node:       65.17021 +/-     0.040
Inclination:            32.06341 +/-     0.006
Eccentricity:         0.11150899 +/-    0.0335
Semi-Major Axis:     40.50636230 +/-    0.2843
Time of Perihelion: 2426059.9825 +/-    3660.3
Perihelion:          35.98953884 +/-    1.3804
Aphelion:            45.02318577 +/-    1.3934
Period (y)              257.8060 +/-      2.71
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           26.49244602 +/-    0.0072
Ecliptic Y          -25.85319986 +/-    0.0074
Ecliptic Z          -21.86158278 +/-    0.0062
Ecliptic XDOT         0.00172284 +/-    0.0001
Ecliptic YDOT         0.00179909 +/-    0.0001
Ecliptic ZDOT        -0.00050620 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   42.99030636 +/-    0.0070
Geocenter to KBO     42.46702157 +/-    0.0120
# Hcoef:  7.05

The following table shows the complete astrometric record for 14TF86. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (14TF86) followed by the observatory code and reference code for the source of the astrometry.

2014 10  01.079861 21 57 09.78   -45 42 06.8   22.9i 14TF86    W84  C~2Bno      
2014 10  14.113275 21 56 19.62   -45 37 38.1   22.9r 14TF86    W84  C~2Bno      
2014 10  14.114653 21 56 19.62   -45 37 38.4   23.2i 14TF86    W84  C~2Bno      
2014 10  14.116019 21 56 19.60   -45 37 38.2   23.4g 14TF86    W84  C~2Bno      
2014 10  21.160417 21 55 59.82   -45 34 16.7   22.4i 14TF86    W84  C~2Bno      
2014 10  26.069468 21 55 49.39   -45 31 34.5   23.0r 14TF86    W84  C~2Bno      
2014 10  31.129653 21 55 41.62   -45 28 30.4   22.3z 14TF86    W84  C~2Bno      
2014 11  04.029201 21 55 37.84   -45 25 57.7   22.2z 14TF86    W84  C~2Bno      
2015 10  16.038275 22 03 08.07   -45 19 54.0   23.2r 14TF86    W84  C~2Bno      
2015 10  16.063495 22 03 07.99   -45 19 53.4   23.0i 14TF86    W84  C~2Bno      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

  1   0.0000      0.00     0.11       0.00    -0.00
  2   0.0357   -375.58     0.02     455.66     0.18
  3   0.0357   -375.70    -0.07     455.39    -0.15
  4   0.0357   -375.81    -0.15     455.65     0.07
  5   0.0550   -486.63     0.00     722.90    -0.11
  6   0.0684   -523.14     0.14     915.20     0.02
  7   0.0823   -525.49    -0.13    1116.60     0.07
  8   0.0929   -501.78     0.08    1272.61    -0.08
  9   1.0403   3982.52    -0.00    -317.21     0.04
 10   1.0403   3982.00     0.00    -316.31    -0.03

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

14TF86    quality flag:2

Type:       SCATEXTD  SCATNEAR  SCATEXTD

axisobj        40.662    42.073    40.287
ecceobj         0.107     0.208     0.069
incobj         32.106    32.125    32.091
qmin           33.000    31.088    36.971
qmax           48.766    54.429    43.871
amean          40.697    42.343    40.306
amin           40.366    41.775    39.998
amax           41.062    42.996    40.629
emean           0.140     0.229     0.068
emin            0.082     0.194     0.056
emax            0.188     0.266     0.080
imean          30.312    30.343    30.735
imin           29.484    29.495    30.389
imax           31.210    31.141    31.054
excite_mean     0.525     0.555     0.516
fracstop        1.000     1.000     1.000
cjmean          2.726     2.703     2.731

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       176.1     182.6     175.3
kozaiamp        180.0     180.0     180.0